Images util

ImageUtil.cs

using System;
using System.Drawing;
using System.IO;

namespace Util
{
    public class ImageUtil
    {
        /// <summary>
        /// Convert Image to Byte
        /// </summary>
        /// <param name="img">Image to convert</param>
        /// <returns>image in byte array</returns>
        public static byte[] ImageToByte(Image img)
        {
            ImageConverter converter = new ImageConverter();
            return (byte[])converter.ConvertTo(img, typeof(byte[]));
        }

        /// <summary>
        /// For use of src="data:image/png;base64,(string Base64 imageBytes) in img HTML tag
        /// </summary>
        /// <param name="imageBytes">image in byte array</param>
        /// <returns>string of the image in Base64</returns>
        public static string ImageToBase64(byte[] imageBytes)
        {
            return Convert.ToBase64String(imageBytes);
        }

        /// <summary>
        /// For use of src="data:image/png;base64,(string Base64 imageBytes) in img HTML tag
        /// </summary>
        /// <param name="filePath">File path of the image</param>
        /// <returns>string of the image in Base64</returns>
        public static string ImageToBase64(string filePath)
        {
            string imageBase64;

            using (var image = Image.FromFile(filePath))
            {
                using (MemoryStream ms = new MemoryStream())
                {
                    image.Save(ms, image.RawFormat);
                    byte[] imageBytes = ms.ToArray();

                    // Convert byte[] to Base64 String
                    imageBase64 = Convert.ToBase64String(imageBytes);
                }
            }

            return imageBase64;
        }
    }
}